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In memory processing for ObjectDB

Transaction per second limit and making sure if ObjectDB can help us here. Additionally the only cache I ... if that is possible -- but want to know what is the Transaction per second that ObjectDB can shoot

Unexpected internal exception during set field of an Embeddable to null

IntegerSignalValueImpl works once on a attched Object and the second time (another attached Object) it results in ... another SignalValue. AND yes in our case the second IntegerSignalValueImpl Object

performance limit

few hundred to few thousand records. This query takes up to 12 seconds. Is this normal ... have seen a similar query on a relation database with few milion records working in a sub second

Query execution time issue

of this query (running with ObjectDB) takes about 10-12 seconds. If i remove ANY 5 left joins, query ... , I've attached a test db. Running the following query in ObjectDB Explorer takes about 60+ seconds

internal object DB locking in an embedded multi threaded application

: - None this seems to take a considerable lenght of time ( approx 4-10 seconds). do you have any suggestions as ... to drive a persistent queue. Dan dansmith Daniel Smith The second stack trace (thread t@16) indicates

Replication Issue

every second a database KAKI.odb - here is the code: EntityManagerFactory EMF = Persistence ... > The slave DB server complains with the following error every second (every time an object is added

NULL prefered in ORDER BY?

one points to Hint{name=A}, second one to Hint{name=B} and third one to NULL: Test 3 (with hint

Database is locked when in use

to confirm for the usage of query.setParameter("name", "your-dir-name"); Is the second agruement

Schema-Update: Rename superclass and remove one subclass

error message. If we try to ecexute a Query (in the second main method): TypedQuery ... are done separately, i.e. the database is opened between the first and the second then the schema change

JPQL support for mapped by (inverse) collections

.JpaQuery.getResultList(JpaQuery.java:695) The second query is a workaround for IS NOT EMPTY: SELECT DISTINCT b.a FROM B b And the third query (which is based on the second query) is a workaround

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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